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Texas Sheet Cake Recipe

This rich and moist chocolate sheet cake is a timeless favorite, made with simple pantry ingredients and topped with a luscious cocoa frosting packed with walnuts. Perfect for gatherings, this crowd-pleasing dessert comes together quickly and delivers intense chocolate flavor in every bite. Whether you're baking for a party or indulging your sweet tooth, this cake is sure to impress.
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Prep Time 15 minutes
Cook Time 22 minutes
Cooling time 8 minutes
Total Time 45 minutes
Servings: 12 slices
Course: Dessert
Cuisine: American
Calories: 450
Ingredients Method Notes

Ingredients
  

Cake
  • 1 cup margarine
  • 1 cup water
  • 4 tablespoons cocoa powder
  • 2 cups all-purpose flour
  • 2 large eggs slightly beaten
  • 1 teaspoon baking soda
  • 2 cups granulated sugar
  • 0.5 cup sour cream
Frosting
  • 0.5 cup margarine
  • 6 tablespoons milk
  • 4 tablespoons cocoa powder
  • 1 cup chopped walnuts
  • 3.5 cups powdered sugar
  • 1 teaspoon vanilla extract

Method
 

Make the Cake
  1. Preheat the oven to 375°F (190°C).
  2. In a large saucepan, bring margarine, water, and cocoa powder to a boil.
  3. Remove from heat and allow to cool slightly.
  4. Add flour, eggs, baking soda, sugar, and sour cream into the saucepan.
  5. Mix until the batter is smooth and fully combined.
  6. Pour the batter into a buttered and floured 10”x15”x2" baking pan.
  7. Bake for 22 minutes, or until a toothpick inserted in the center comes out clean.
Make the Frosting
  1. In a saucepan, bring margarine, milk, and cocoa powder to a boil.
  2. Remove from heat and stir in chopped walnuts, powdered sugar, and vanilla extract.
  3. Beat until well combined and smooth.
  4. Immediately pour the frosting over the warm cake and spread evenly.
  5. Allow the cake to cool completely until the frosting is set, about 8 minutes.

Notes

  • You can substitute margarine with unsalted butter if preferred.
  • Store the cake covered at room temperature for up to 3 days.